ONE Gas, Inc.
MX ˙ BMV ˙ US68235P1084
SecurityMX:OGS / ONE Gas, Inc.
InstitutionLinden Thomas Advisory Services, LLC
Latest Disclosed Ownership14,821 shares
Latest Disclosed Value $ 1,276,533
Linden Thomas Advisory Services, LLC reports 0.54% increase in ownership of OGS / ONE Gas, Inc.

On April 10, 2026 - Linden Thomas Advisory Services, LLC filed a 13F-HR form disclosing ownership of 14,821 shares of ONE Gas, Inc. (MX:OGS) valued at $1,276,533 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 14,742 shares of ONE Gas, Inc.. This represents a change in shares of 0.54% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-10 2026-03-31 13F ONE GAS COM 68235P108 14,821 79 0.54 1,277 12.13 0.1230
2026-01-16 2025-12-31 13F ONE GAS COM 68235P108 14,742 -204 -1.36 1,139 -5.87 0.1154
2025-11-06 2025-09-30 13F ONE GAS COM 68235P108 14,946 21 0.14 1,210 12.78 0.1224
2025-07-31 2025-06-30 13F ONE GAS COM 68235P108 14,925 -149 -0.99 1,073 -5.88 0.1181
2025-04-30 2025-03-31 13F ONE GAS COM 68235P108 15,074 268 1.81 1,139 11.12 0.1475
2025-01-21 2024-12-31 13F ONE GAS COM 68235P108 14,806 -332 -2.19 1,025 -8.97 0.1299
2024-10-17 2024-09-30 13F ONE GAS COM 68235P108 15,138 -75 -0.49 1,127 15.96 0.1539
2024-07-10 2024-06-30 13F ONE GAS COM 68235P108 15,213 270 1.81 971 0.73 0.1501
2024-04-30 2024-03-31 13F ONE GAS COM 68235P108 14,943 482 3.33 964 4.67 0.1549
2024-02-01 2023-12-31 13F ONE GAS COM 68235P108 14,461 -390 -2.63 921 -9.17 0.1721
2023-10-20 2023-09-30 13F ONE GAS COM 68235P108 14,851 -26 -0.17 1,014 -11.21 0.2259
2023-07-27 2023-06-30 13F ONE GAS COM 68235P108 14,877 14,877 1,143 0.2538
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.